About this Image
This area seen here in RGB and in H-alpha light is dramatic by it's unique shape.
Powerful winds from the nebula's embedded, young, massive stars shape the looping filaments.
The obscuring dust is forming a 3-dimensional cave below the center of this image.
20 " Keller cassegrain in corrected secondary focus at f/9
|Camera||SBIG STL-11000M at -20C, 8-pos STL filter wheel|
|Filters||Baader RGB, H-alpha, (7 nm)|
|Date||Apr 27, 2008.|
|Sky Conditions||dark skies, raw FWHM 1.5-1.8" temperature 10 C,|
R:G:B = 30:30:30 minutes (15-minute sub-exposures);
S2:Ha:O-III = 120:240:120 min (60 minute sub-exposures); S2, O3 not yet used
Maxim DL 4.5;